v1: executing-plans 模式生成，54 文件 1320 行 Python

agents/agent1_parser.py

@@ -0,0 +1,50 @@
+import json
+from data.field_tree import FieldTree, Field
+from agents.llm import LLMClient
+
+PROMPT_AGENT1 = """You are a COBOL COPYBOOK parser. Given COPYBOOK text, output a JSON object:
+{"fields": [{"name": "...", "level": N, "pic": "...", "usage": "DISPLAY|COMP-3|COMP|COMP-5", "offset": N, "length": N, "decimal": N, "signed": bool, "occurs": N|null, "redefines": "..."|null, "conditions": [{"name": "...", "value": "..."}], "children": [...]}]}
+Return valid JSON only. No explanation."""
+
+
+class Agent1Parser:
+    def __init__(self, llm: LLMClient):
+        self.llm = llm
+
+    def parse(self, copybook_text: str) -> FieldTree:
+        messages = [
+            {"role": "system", "content": PROMPT_AGENT1},
+            {"role": "user", "content": copybook_text}
+        ]
+        raw = self.llm.call(messages)
+        return self._parse_response(raw)
+
+    def _parse_response(self, raw: str) -> FieldTree:
+        try:
+            data = json.loads(raw)
+            fields = self._to_fields(data.get("fields", []), offset=0)
+            return FieldTree(fields=fields, copybook_name="")
+        except (json.JSONDecodeError, KeyError):
+            return FieldTree(fields=[], copybook_name="parse_error")
+
+    def _to_fields(self, raw_fields: list, offset: int = 0) -> list[Field]:
+        result = []
+        current_offset = offset
+        for rf in raw_fields:
+            f = Field(
+                name=rf.get("name", ""),
+                level=rf.get("level", 0),
+                pic=rf.get("pic", ""),
+                usage=rf.get("usage", "DISPLAY"),
+                offset=current_offset,
+                length=rf.get("length", 0),
+                decimal=rf.get("decimal", 0),
+                signed=rf.get("signed", False),
+                occurs=rf.get("occurs"),
+                redefines=rf.get("redefines"),
+                conditions=rf.get("conditions", []))
+            children = rf.get("children", [])
+            f.children = self._to_fields(children, current_offset)
+            current_offset += f.length
+            result.append(f)
+        return result